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16.48% Efficient solution-processed CIGS solar cells with crystal growth and defects engineering enabled by Ag doping strategy

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Journal of Energy Chemistry 2025年第1期100卷 59-65页

作者： Mengyu Xu Shaocong yan Ting Liang Jia Jia Shengjie Yuan Dongxing Kou Zhengji Zhou Wenhui Zhou Yafang Qi Yuena Meng Litao Han Sixin Wu Key Laboratory for Special Functional Materials of MOE National & Local Joint Engineering Research Centre for High-efficiency Display and Lighting Technology School of Nanoscience and Materials Engineering Henan University

Solution-processed Cu（In,Ga）Se2（CIGS） solar cells suffer from serious carrier recombination and power conversion efficiency（PCE） loss because of the poor film properties and easy formation of ***, we propose Ag&Se co-selenization strategy to enhance the crystallization and passivate harmful defects of the CIGS films. The formation of Ag-Se phase during the selenization process enables the formation of large grains and suppresses the deep level defects. It is found that Ag doping can enlarge the depletion region width, lower the Urbach energy and prolong the carrier lifetime. As a result, a champion solution-processed CIGS solar cell presents a high efficiency of 16.48% with the highly improved opencircuit voltage（VOC） of 662 m V and fill factor（FF） of 75.8%. This work provides an efficient strategy to prepare high quality solution-processed CIGS films for high-performance CIGS solar cells.

关键词： Cell engineering

Dissolution of highly molecular weight cellulose isolated from wheat straw in deep eutectic solvent of Choline/L-Lysine hydrochloride

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Green Energy & Environment 2020年第2期5卷 232-239页

作者： Jiake wang yan.wang Zhongzheng Ma Lifeng yan CAS Key Laboratory of Soft Matter Chemistry Hefei National Laboratory for Physical Sciences at the MicroscaleDepartment of Chemical PhysicsiCHEMUniversity of Science and Technology of ChinaHefei230026China

Green solvents for cellulose dissolution is a key topic for green chemistry,especially natural cellulose with high molecular weight,and there are scarce solvents *** eutectic solvent(DES)is a typical kind of green solvent that has been attracted much attention ***,high molecular weight natural cellulose(DP>3000)was first isolated from wheat straw and then be directly dissolved in the choline/L-lysine(Ch/Lys)*** solution owns excellent stability,and the solubility reaches^5%.Rheological studies revealed that the natural cellulose can be well dispersed in the DES solution and showed gelation at high *** dissolved cellulose can be regenerated when the dilute acid aqueous solution was added into the *** provides an energy conversation and an environmentally friendly route to prepare a cellulose solution,which makes it possible to convert cellulose to valuable chemicals and materials in its homogeneous solution.

关键词： Deep eutectic solvent(DES) Choline/L-Lysine hydrochloride Wheat straw Natural cellulose Solvent

Optimal Military Spending,Trade and Stochastic Economic Growth

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Journal of Systems Science & Complexity 2016年第3期29卷 736-751页

作者： wang Dengshan wang yan School of Applied Science Beijing Information Science and Technology University Department of Systems Science Business SchoolUniversity of Shanghai for Science and Technology CEMA Central University of Finance and Economics

Based on the procedure of dynamic programming,this paper investigates the military spending,trade and wealth accumulation in a stochastic endogenous economic growth *** the Cobb-Dauglas utility function,explicit solutions of the optimal problem of the home country are ***,the optimal consumptions of domestic goods and foreign goods,the share of domestic capital stock and foreign bond holdings are derived *** comparative dynamic analysis shows that when intertemporal substitution in consumption is relative elastic,economic growth has a positive correlation with foreign military spending,has a negative correlation with variance of foreign military spending,and has a positive correlation with variance of capital or bonds if capital and bonds yields the same ***,in the case of inelasticity,variance of foreign military spending may stimulate or weaken economic development.

关键词： Foreign bond holdings military spending stochastic economic growth trade wealth accumulation.

Microspheres trigged-stress concentration regulating piezoelectric properties of PVDF/elastomer composites

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Science China Chemistry 2025年

作者： Wenxian Zhang Jiahong yang Qijun Sun Lu Peng Tong Lin Shouke yan Xiaoli Sun State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences State Key Laboratory of Separation Membranes and Membrane Processes School of Textile Science and EngineeringTiangong University Key Laboratory of Rubber-Plastics of Ministry of Education Shandong Provincial Key Laboratory of Rubber-PlasticsQingdao University of Science & Technology

Wearable self-powered piezoelectric pressure sensors are attracting tremendous ***,fabricating a high-sensitive elastic piezoelectric sensor for a broad response range remains ***,we assemble polar poly（vinylidene fluoride）(PVDF) microsphere-elastomer composites,achieving high-sensitive and wide-responsive pressure *** polar PVDF microspheres are produced cost-effectively through phase separation,enabling *** piezoelectric composite （PC） film demonstrates low Young’s modulus,and excellent anti-fatigue ***,the PC-based piezoelectric sensor exhibits a rather high sensitivity of 540 mV N-1in a wide sensing range （5–40 N）,240 times greater than the PVDF film-based sensor and comparable to the inorganic piezoelectric *** excellent performance is attributed to the highest average stress concentration on the spherical PVDF coupled with the remarkable deformation of dipoles of spherical PVDF in the flexible *** on excellent performance,this piezoelectric sensor achieves precise recognition of motions and sound *** high-sensitive flexible piezoelectric sensor enabling large area production with ultralow price exerts great potential in smart monitoring and intelligent robots.

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Broadband low-frequency sound absorption of multifunctional composite metastructure

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Science China Technological Sciences 2025年

作者： Yilong yanG Shanshan LIU yan LI Tong GAO Yongdong PAN Yong LI Yabin JIN School of Aerospace Engineering and Applied Mechanics Tongji University Institute of Acoustics School of Physics Science and Engineering Tongji University Shanghai Institute of Aircraft Mechanics and Control State International Joint Research Center of Aerospace Design and Additive Manufacturing Northwestern Polytechnical University Shanghai Key Laboratory of Intelligent Sensing and Detection Technology School of Mechanical and Power Engineering East China University of Science and Technology

In this study, we fabricated multifunctional metastructures from carbon fiber-reinforced plastic composites using additive manufacturing technology. These metastructures are characterized by their lightweight, load-bearing capacity, and broadband low-frequency sound absorption properties. The metastructure consists of 36 unit cells, and non-local coupling mechanism was considered for designing the sound absorption performance. We developed an acoustic impedance theory tailored for the metastructure, facilitating an analysis of thermal and viscous dissipation mechanisms. It is proven theoretically and experimentally that the proposed composite metastructure can achieve a noise reduction with an average sound absorption coefficient greater than 0.9 across frequencies in the rage of 330–1500 Hz. We also studied the metastructure’s quasi-static and cyclic compression performance, confirming its efficient absorption capabilities after cyclic compression. The proposed design and additive manufacturing method for composite metastructures provides a novel pathway for creating lightweight, multifunctional structures with diverse applications, such as aerospace engineering.

关键词：

阿尔泰地区巴泽雷克文化马鞍毛毡贴花艺术研究

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丝绸 2025年第1期62卷 101-109页

作者：常艳西安外国语大学艺术遗产研究中心西安710128

针对阿尔泰地区巴泽雷克文化马鞍毛毡贴花艺术,文章采用文献分析、图像分析、类型与历史比较的研究方法,对遗存情况、贴花工艺、历史溯源及盛行的原因、文化信仰几个方面进行梳理和分析。归纳巴泽雷克文化马鞍毛毡及其贴花工艺的制作流... 详细信息

针对阿尔泰地区巴泽雷克文化马鞍毛毡贴花艺术,文章采用文献分析、图像分析、类型与历史比较的研究方法,对遗存情况、贴花工艺、历史溯源及盛行的原因、文化信仰几个方面进行梳理和分析。归纳巴泽雷克文化马鞍毛毡及其贴花工艺的制作流程,探讨其用色的工艺和风格。研究认为,这种艺术形式经历了从本土到融合外来艺术样式,再到新本土风格形成的几个发展阶段。其显著特色是多种材料的搭配使用、强烈的冷暖对比配色及独特的动物贴花装饰。同时,毛毡贴花艺术不仅作为生活物资,更是原始宗教信仰的载体。无论从工艺水准还是地域特色,都是同时期甚至更晚时期其他地域无法相比的,因此具有重要的史料价值和艺术价值。

关键词：阿尔泰巴泽雷克文化马鞍毛毡贴花艺术

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基于SBAS-InSAR和光学遥感的天津市北部山区潜在滑坡识别研究

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灾害学 2025年第1期40卷 30-35页

作者：王勇邢振涛李锁闫勇司甜天津城建大学地质与测绘学院天津300384 天津市地质工程勘测设计院有限公司天津300191

以天津市北部山区为研究对象,开展潜在滑坡识别研究,利用差分干涉测量短基线集时序分析技术(SBAS-InSAR)处理2018-01—2022-08的56景Sentinel-1A数据,并结合2018—2022年的Landsat8光学遥感影像,分析形变与光学遥感影像特征以及NDVI,筛... 详细信息

以天津市北部山区为研究对象,开展潜在滑坡识别研究,利用差分干涉测量短基线集时序分析技术(SBAS-InSAR)处理2018-01—2022-08的56景Sentinel-1A数据,并结合2018—2022年的Landsat8光学遥感影像,分析形变与光学遥感影像特征以及NDVI,筛选出潜在滑坡区域。研究结果表明:基于SBAS-InSAR技术识别的天津北部山区的形变较大区域有20处,使用光学遥感影像结合各发育环境要素进行处理确定的区域有19处,其中5处经两种技术确认为滑坡隐患,通过对该5处沉降信息进行识别分析,该5处区域最大年形变速率可达-12 mm/a,需要进行重点监测预警,使用两种技术结合对滑坡隐患区域进行识别可以有效地提高识别准确度,为天津北部山区灾害监测提供新的方式。

关键词：潜在滑坡 SBAS-InSAR 光学遥感影像天津市北部山区

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烟曲霉外排泵唑类耐药研究进展

医学分子生物学杂志 2025年第1期22卷 97-100页

作者：王娟马彦山西医科大学第二医院皮肤性病科太原市030001

烟曲霉是一种广泛存在于自然界的机会性病原体,可引起侵袭性曲霉病,在免疫功能低下的患者中死亡率很高。三唑类药物是侵袭性曲霉病的一线治疗药物,然而近年来全球范围内烟曲霉唑类耐药分离株不断增多,极大地威胁到患者的生命健康。外排... 详细信息

烟曲霉是一种广泛存在于自然界的机会性病原体,可引起侵袭性曲霉病,在免疫功能低下的患者中死亡率很高。三唑类药物是侵袭性曲霉病的一线治疗药物,然而近年来全球范围内烟曲霉唑类耐药分离株不断增多,极大地威胁到患者的生命健康。外排泵由跨膜蛋白质组成,可以将不需要的物质排出细胞,对微生物的存活有着重要的保护作用,与此同时,研究表明它还介导了微生物的耐药。文章综述了近年来关于烟曲霉药物外排泵的功能及调控机制的研究进展,为深入理解烟曲霉耐药机制及筛选抗烟曲霉感染药物新靶点提供理论基础。

关键词：烟曲霉耐药外排泵

Research on Modeling and Parameter Identification of Comprehensive Load Model of Distribution Network in Industrial Park

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Chinese Journal of Electronics 2024年第1期33卷 264-273页

作者： Tingling wang Xiaohe yan School of Electric Engineering North China University of Water Resources and Electric Power Wenzhou Polytechnic

With the rapid development of industrial parks, its load model research has become a hot spot. In order to study the load of power system in industrial park, based on the characteristics of the industrial park load, a comprehensive load admittance static model with full voltage range adaptability is considered, and a comprehensive load model of distribution network of the industrial park is established. A complete parameter identification of the model is carried out through chaos particle swarm optimization. The simulation results show that the model can effectively describe the load characteristics of the distribution network in industrial parks.

关键词： Chaos Adaptation models Analytical models Parameter estimation Induction motors Simulation Distribution networks